Wrench



`(No Mdel.)

I'. E. HBINIG. WRENCH.

ANo. 422,526. Patented Mar. 4, 1890.

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i UNITED STATES PATENT OFFICE.

FREDERICK E. IIEINIG, OF LOUISVILLE, KENTUCKY.

SPECIFICATION forming part of Letters 'Patent No. 422,526, dated March 4, 1890.

vApplication led August 8, 1889.

. Serial No. 320,071. (No model.)

To all whom it may concern:

Be it known that I, FREDERICK E. I-IEINIG,

This invention relates to that class 'of wrenches which are adapted to screw the caps on and olf from. fruit-j ars, and for other similar service; and its object is to provide means whereby a wrench is' adapted .to engage and hold rmlyto a circular cap or cover, so'as to revolve the same either to the right or to the left for the purpose of screwing the cover on or off from the jar, without turning the wrench the other side up between the operations of revolving to the right and to the left.

To this end 'my invention consists in the construction and combination of parts forming a wrench, hereinafter described and claimed, reference being had lto the accompanying drawings, in`which Figure I is an under side view of my wrench. Fig. II is an edge view of the same, and Fig. III is an underside view of a modi- .cation thereof.

The dotted circle 12represents a` cap in position to be operated upon by the Wrench.

NVhen the handle stands straight out, as shown at dotted lines 13, the Wrench will drop freely upon the cap. Then if the handle of the lever be turned to the right or left one of the projecting cheeks of its cam end will be brought into engagement with the side of the cap, andthe harder the pressure the closer becomes the engagement, the cap bein g hingedbetween the cam and lugs, so that the cap must yield and turn with the wrench.`

.There are many one-sided cam-shape wrenches for revolving screw-threaded pipes, &c., but it requires intelligence and amoments consideration to decide which side up to'apply such a wrench to make it turn the screw the desired Way; but it does notl rea quire such intelligence and consideration to use my Wrench, because it can only be applied one side up, and when applied itis ready to turn the screw either wayby merely proceeding to turn the handle that way. In thernodiication shown in Fig. III the body has been extended to serve as a handle orQ-lever 14, While the lever 8 Ais made very yshort and pivoted' thereto in the same relation to the lugs 7, as before shown. In this vcase it is necessary to press upon both the levers 8 and 14 to engage the cap and to carry itin either direction on the principle before described; but as soon as the'cam engages .the side of the cap further pressure on the camlever 8 is unnecessary, because the continued movement ofthe lever 14 will hold the cam engaged. Teeth upon theedge of the cam and the lugs are a` common expedient for gripping purposes, and they may or may not be used yon this wrench, according as the purpose to which. it is to be applied may require.

lThe main characteristic of this invention is the two lugs 7, serving as jaws of a wrench, opposed by a cam 10, adapted to serve as a gripping-jaw, the jaws and cam being so lo cated as to form an acute-angled triangle, and the cam being double, so that it will engage a circular object when turned either way around it. As soon as seryicefis done the wrench will be disengaged from the cap by turning it a little backward.

Vthile the main object of this invention is to operate upon the caps of lfruit-jars and A IOO 16, whereby the pivot may be fixed at any pointalong the slot;

Having thus fully described myinvention, what I believe to be new, and desire to securev -by Letters Patent, is the following:

Y1. The combination, in a wrench for jarcovers, of a body portion 5, having two fixed arms 6 in the same plane adapted to rest. directly upon the top of a cover and. provided with lugs 7, projecting from the lower face of the arms, and a cam provided with a handle and pivoted to the lower face of the body, the said cam being double, whereby it will engage a jar-coverwhen turned in either direction, substantially as shown and described.

2. The combination, in a Wrench for jarcovers, of a body portion having two rigid arms in the same plane adapted to rest d irectly upon a cover and provided with lugs to extend down beside the'eover, and alever 2o having a double-cam-shaped end pvoted directly to the lower side of the said body portion, whereby `the said cam and lugs are 1ocat-ed at the angles of an acute-angled triangle, and the donble'cam is adapted to engage its work by being turned /either to the 'right or left.

In testimony whereof I aix my signature in presence of two witnesses.

FREDERICK` E. HEINIG.

Witnesses:

HARRY CLAPHAM, JOE I I. EICHLER. 

